徐新生

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:北京大学

学位:博士

所在单位:力学与航空航天学院

学科:工程力学. 固体力学. 生物与纳米力学

办公地点:大连理工大学综合实验一号楼308

电子邮箱:xsxu@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

A SYMPLECTIC HAMILTONIAN APPROACH FOR THERMAL BUCKLING OF CYLINDRICAL SHELLS

点击次数:

论文类型:期刊论文

发表时间:2010-06-01

发表刊物:INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS

收录刊物:EI、SCIE

卷号:10

期号:2

页面范围:273-286

ISSN号:0219-4554

关键字:Cylindrical shell; Hamiltonian system; thermal buckling

摘要:The paper deals with the thermal buckling of cylindrical shells in a uniform temperature field based on the Hamiltonian principle in a symplectic space. In the system, the buckling problem is reduced to an eigenvalue problem which corresponds to the critical temperatures and buckling modes. Unlike the classical approach where a predetermined trial shape function satisfying the geometric boundary conditions is required at the outset, the symplectic eigenvalue approach is completely rational where solutions satisfying both geometric and natural boundary conditions are solved with complete reasoning. The results reveal distinct axisymmetric buckling and nonaxisymmetric buckling modes under thermal loads. Besides, the influence for different boundary conditions is discussed.